Hello everyone, Just did a fresh install of ISPConfig using the "Perfect Server" howto, Ubuntu 16.04/nginx. I followed everything to the word, ISPConfig working fine -- I can create clients, websites, email addresses, life is good. However I cannot send emails. I've tried sending to myself and to external addresses, no luck. There are no emails coming in as well, this is a new setup. Before I can even dig deeper into that, I have a bigger problem to fix (and they may be related): clamd service is chewing up my CPU (htop shows 96 CPU% and 37 MEM%) and it is making my entire server unusable. I can't even use shell to investigate. If it can help, I'm using amazon EC2, a t2.micro instance (1GB RAM), and my security group has all the required ports open for inboud traffic. The funny thing is, I have another server running with ISPConfig but with clamd, and it's taking the same amount of RAM but the CPU there is very low. I purchased the instruction manual, but there is no info there -- and I searched the forums, I notice many have similar issues, but I can't seem to find a solution. ANY help will be greatly appreciated. Thank you!!